气动元件流量特性测试方法实验验证

发布时间：2018-01-13 03:33

本文关键词：气动元件流量特性测试方法实验验证　出处：《液压与气动》2016年05期 　论文类型：期刊论文

【摘要】：针对新国际标准ISO 6358-1中测量气动元件流量特性的两种方法——放气试验和充气试验方法,选取电磁阀和流量控制阀,通过实验分析了不同测试压力和取点间隔对C、b值测试结果的影响;并在相同测试条件下,对两种试验方法所测C、b值的一致性进行验证。测试数据表明:两种试验方法测得的C值受取点间隔和测试压力影响较小;b值受测试压力和取点间隔影响大。相同测试条件下,两种试验方法测出的C值相近,而b值相差太大。建议国际标准在后续修订时能明确测试压力和取点间隔条件,并考虑进一步研究两种测试方法并存于同一标准中的适用性和科学性。
[Abstract]:The solenoid valve and the flow control valve are selected to measure the flow characteristics of pneumatic components in the new international standard ISO 6358-1. The influence of different test pressure and interval on the test results of Cnb value is analyzed through experiments. Under the same test conditions, the consistency of the Cnb values measured by the two test methods is verified. The test data show that the C values measured by the two test methods are less affected by the interval between the two test points and the test pressure. B value is greatly affected by the test pressure and the interval between the points. Under the same test conditions, the C values measured by the two test methods are similar. It is suggested that the international standard should be able to define the test pressure and the point spacing condition in the subsequent revision, and consider further study on the applicability and scientific nature of the two test methods in the same standard.
【作者单位】：国家气动产品质量监督检验中心;
【分类号】：TH138.5
【正文快照】： 引言流量特性是气动元件的重要技术指标,准确测试气动元件的流量特性对评价气动产品性能参数和气动控制系统的选型具有重要意义。气动元件流量特性测试的方法研究,一直以来都备受关注。1989年,ISO6358-1989正式发布,采用声速流导C和临界压力比b这两个参数来表示气动元件的流量

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